A baby elephant heads for Dr. Tracy's study center after a trapper kills its mother.
Dr. Tracy sets out after a poacher, who has set dozens of animal traps all over the reserve.
A game guard's old pet lioness's increasing irritability culminates in an attack on a farmer.
Dr. Tracy and Jack Dane come across three lion cubs whose mother has been snared in a poacher's trap.
While Janet Lorne is visiting Wameru, an escaped murderer is reported in the vicinity.
A professional hunter joins an archaeological expedition, with the job of killing all predatory animals near the camp.
Dr. Tracy pays a visit to two Frenchmen who say they are paleontologists, but who are actually diamond smugglers.
Judy the chimp angers a family of wild chimpanzees when she brings an injured young chimp to the study center.
A foul-tempered farmer has trained his German Shepherd dog to attack any and all animals from the Wameru reserve. Paula and Jack Dane find the animal caught in a poacher's snare, rescue it, and take it back to Dr. Tracy to be treated and, more importantly, re-trained—a prospect that's not likely to sit well with the dog's owner.
After escaping from prison, Roy Meadows, a wounded killer, heads for Wameru to receive medical aid.
Held at gunpoint, Paula must try to remove a bullet from escaped killer Roy Meadows.
A magazine photographer looking for a story lures a hostile tribe of poachers onto the Wameru reserve, thinking that she will get some dramatic pictures to go with the story.
Dr. Tracy treats an injured leopard and releases it into the wild, but a visiting trade commissioner who wants to hunt for big game sets his sights on the leopard for his trophy. Dr. Tracy sets out to derail his plans.
Clarence the lion and Judy the chimp are kidnapped and held for ransom.
Judy the chimp, who was once bitten by a hyena, gets nervous, scared and agitated when she sees Paul and Jack bring in an injured hyena pup. Dr. Tracy has a difficult time keeping Judy calm enough so he can treat the hyena.
Warned against hunting on the Wameru reserve, a hunter starts a fire to drive the animals out.
Paula and Jack face the dangers of a brush fire started by an unscrupulous hunter.
Dr. Tracy lends a helping hand to Dr. Akubar, a gunrunner posing as an archaeologist.
Clarence the lion, normally a gentle soul, starts acting oddly after receiving a blow to the head in a jeep accident, becoming edgy, hard to control and growling at everybody. Dr. Tracy suspects that the blow has given Clarence amnesia, a diagnosis seemingly confirmed when Clarence suddenly takes a nasty swipe at Paula.
A rancher releases cattle in a plan to entice lions and leopards to kill them, thus giving the rancher an excuse to drive Dr. Tracy from the area and claim the reserve's land. Dr. Tracy must round up the cattle before the big cats become livestock killers.
A big-game hunter, angry at Dr. Tracy for closing off the Wameru reserve to hunting, stalks Dr. Tracy and Judy the chimp through the wild, trying to prove that Dr. Tracy will have to kill an animal to survive.
Judy the chimp switches the vial used for her regular fever shot, causing Paula to accidentally inject her with a deadly virus. Judy then wanders off into the wild. Her human and animal friends race against time to find her and give her the necessary antidote before it's too late.
The Emir of Asambana's prize cheetah is sick, and may not be able to race in an important contest with a rival tribe. The Emir threatens to cut off the Wameru reserve from using the water on his property unless Dr. Tracy cures his cheetah in time for the race.
Mike searches in the jungle for a tribal chief's son, who has fled into the bush in an attempt to prove to everyone that he's not a coward.
A pregnant black leopard with a history of killing her previous cubs and attacking her trainer is brought to the center in hopes that Dr. Tracy can change her behavior. However, Judy the chimp fails to lock the leopard's cage and she escapes. Paula is forced to play midwife when she finds the leopard in the bush about to give birth.
Dr. Tracy serves as defense counsel for his trained elephant, who is being put on trial by the locals for going on a rampage in a local village and injuring the chief.
Jack is out driving his jeep in the bush with Judy the chimp when the vehicle stalls out. With no water, they're forced to leave the jeep and try to make their way back through the drought-stricken jungle. Jack decides to follow a herd of giraffes, hoping that the animals will lead them to water.
Dr. Tracy agrees to escort a wealthy, beautiful woman on a filming safari. Unbeknownst to him, the woman's real objective is to find, track and kill a legendary leopard that killed her father years before.
A sick circus bear escapes into the bush, and Dr. Tracy tries to find it before worried local ranchers kill it, fearful that it will contaminate their water supply.
Dr. Tracy goes looking for a self-styled tribal "healer" he ran out of the area when he finds that the man has the antidote for the venom of a deadly spider that has just bitten Paula.
A hunter plots to close the Wameru reserve by turning loose a killer lion against Dr. Tracy and then blaming Clarence the lion for the doctor's death.
A TV comedian visits Dr. Tracy's compound to record the sounds made by animals, but his bumbling disrupts the compound and endangers the lives of Paula, Clarence the lion, and Judy the chimp.
Two hunters raid the Wameru reserve to steal some very valuable animals, kidnapping Judy the chimp in the process. Dr. Tracy has to stop them.
Dr. Tracy and Jack ask Hedley to investigate the disappearance of several baby animals from the compound. Hedley soon finds the one responsible for the thefts: it's Judy the chimp.
An injured and potentially dangerous lioness escapes from Dr. Tracy's compound. Clarence the lion tries to stop her, but ends up injured by a spear from a native's trap and stranded in a hut with a family of wild lions. Dr. Tracy, Paula and Jack attempt to rescue Clarence.
A jeep accident out in the bush results in Dr. Tracy being seriously injured. Paula and Judy the chimp are the only ones with him and have to find a way to get him safely back through the wild to where he can get medical attention.
Paula and Dr. Tracy work to remove wildlife from an area soon to be flooded when hydraulic engineers dynamite a levee. An impatient engineer, not knowing that Paula is in the area and annoyed over the time lost saving animals, sets off the dynamite ahead of schedule, releasing a wall of floodwater and endangering Paula's life.
A baby elephant is attacked by a leopard and needs medical care, but the adult wild elephants won't let anyone near the injured baby. Dr. Tracy and Judy the chimp must find a way to help the baby elephant before it's too late.
A vicious jewel thief threatens to murder Hedley unless Dr. Tracy gives him a pouch of stolen diamonds that, unknown to him, were taken by Judy the chimp.
Hedley accompanies an officer and his Nazi prisoner on a mission to locate microfilm evidence against the Nazi and his cohorts that is supposedly buried on the reserve. However, the officer and prisoner are actually two former German soldiers looking for a cache of buried diamonds. Their plan goes awry when Hedley gives the package of diamonds to Judy the chimp, who hides them.
Mike is attracted to a beautiful visitor to the compound, who offers him an important job back in the U.S. with a foundation she is setting up. But Mike's friends find evidence that the job offer isn't what it appears to be, and try to stop him from leaving.
The coming of spring at the Wameru reserve finds Jack and Mike attempting to hatch abandoned ostrich eggs, with help from Judy the chimp and Clarence the lion.
A valuable royal lion cub needs a blood transfusion, and Clarence the lion has the type of blood needed, but he seems to have disappeared. Dr. Tracy and his friends fan out to find him and save the cub's life.
The nephew of an Indian sultan visits the compound, but his real objective is the revenge killing of a tiger previously donated by his uncle. Only Judy the chimp realizes his plan, and saves the tiger several times until Dr. Tracy catches on to the plot.
Judy the chimp and Clarence the lion "adopt" a vulture as their new friend and playmate, but they don't know that the bird is carrying a lethal virus that makes Clarence very ill.
Paula discovers a lioness is not feeding her cub. Despite her father's warnings not to interfere with nature, Paula and Judy the chimp decide to "rescue" the cub, endangering the lives of Paula, the cub, and Clarence the lion.
